puts "1..8"
puts "#{(not true)? 'nok' : 'ok'} 1 - loose unary 'not'"
puts "#{(!true)? 'nok' : 'ok'} 2 - tight unary not '!'"
puts "#{37&41 == 33? 'ok' : 'nok'} 3 - infix bit-and '&'"
puts "#{138 << 2 == 552? 'ok' : 'nok'} 4 - infix bitshift left '<<'"
puts "#{138 >> 2 == 34? 'ok' : 'nok'} 5 - infix bitshift right '>>'"
puts "#{138 ^ 107 == 225? 'ok' : 'nok'} 6 - infix xor '^'"
puts "#{138 | 107 == 235? 'ok' : 'nok'} 7 - infix or '|'"
puts "#{(!2==false and not 2==1+3 and 3==2+1)? 'ok': 'nok'} 8 - precedence"
